[GOLD] Reduce size of class Symbol
authorAlan Modra <amodra@gmail.com>
Tue, 29 Aug 2017 06:22:45 +0000 (15:52 +0930)
committerAlan Modra <amodra@gmail.com>
Tue, 29 Aug 2017 11:59:37 +0000 (21:29 +0930)
commit34ca2bd7ace5e208d46fea6e7a56a5376de0abfe
treee94fa309fc1b405d885c17c8d230d243334f50b0
parentf2d394fce1f37a07148719c4bc919ca7b7a0b025
[GOLD] Reduce size of class Symbol

On 64-bit targets there is a 32-bit hole in symbol->u_, and another
due to symbol flags exceeding 32 bits.  By splitting the union,
the total size of the class reduces by one 64-bit word.

* symtab.h (Symbol): Split u_ into u1_ and u2_.  Adjust accessors
to suit.  Move plt_offset_ before got_offsets_.
* symtab.cc (Symbol::init_fields): Adjust for union change.
(Symbol::init_base_output_data): Likewise.
(Symbol::init_base_output_segment): Likewise.
(Symbol::allocate_base_common): Likewise.
(Symbol::output_section): Likewise.
(Symbol::set_output_section): Likewise.
(Symbol::set_output_segment): Likewise.
* resolve.cc (Symbol::override_base): Likewise.
(Symbol::override_base_with_special): Likewise.
gold/ChangeLog
gold/resolve.cc
gold/symtab.cc
gold/symtab.h